19

我有一个DialogFragment向用户显示选项列表的选项,其中一个选项是“删除”选项,当用户按下删除选项时,我想显示另一个 DialogFragment 作为确认,不幸的是,确认对话框没有显示。

这是我的代码

第一个片段代码

public class ContactDialogOption extends SherlockDialogFragment {

    public static final String TAG = ContactDialogOption.class.getSimpleName();

    public ContactDialogOption() {
        super();
        // TODO Auto-generated constructor stub
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

        builder.setIcon(R.drawable.ic_launcher);
        builder.setTitle(R.string.options);

        builder.setItems(new String[] {

        getString(R.string.call), getString(R.string.send_message),
                getString(R.string.copy), getString(R.string.edit),
                getString(R.string.delete)

        }, new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                          if(which == 4) //delete
                          {
FragmentManager mgr = getActivity().getSupportFragmentManager();
    FragmentTransaction ft = mgr.beginTransaction();
        Fragment old = mgr.findFragmentByTag("SecondFragment");
        if (old != null) {
            ft.remove(old);
        }
        ft.addToBackStack(null);


fragment.show(ft, fragmentTag);
                          }
            }
        });

        return builder.create();
    }
}
4

9 回答 9

9

我遇到了完全相同的问题,当您尝试DialogFragmentFragment.

我找到的唯一解决方案是修改以下调用:

fragment.show(ft, fragmentTag);

至:

fragment.show(getFragmentManager(), fragmentTag);

这个解决方案的问题是我们无法在FragmentTransition.

我不明白为什么行为与片段不同。

于 2016-04-20T16:44:03.627 回答
2

请检查以下代码。希望这会对你们中的许多人有所帮助!

public class SubcategoryFragment extends DialogFragment {

public SubcategoryFragment() {

}

public static SubcategoryFragment newInstance(Integer code, String name) {
    SubcategoryFragment fragment = new SubcategoryFragment();

    mCode = code;
    mTitle = name;
    return fragment;
}


@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    liststring = new ArrayList<>();

    getAdapter();

}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.fragment_subcategory, container, false);
    gridView = (GridView) view.findViewById(R.id.sub_grid);


    return view;

}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    closeDialog = (ImageView) getDialog().findViewById(R.id.closeDialog);
    title = (TextView) getDialog().findViewById(R.id.dialogTitle);
    gridView = (GridView) getDialog().findViewById(R.id.sub_grid);

    title.setText(String.format("Choose %s", mTitle));
    closeDialog.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            getDialog().dismiss();
        }
    });


}

@Override
public Dialog onCreateDialog(@NonNull Bundle savedInstanceState) {
    Dialog dialog = super.onCreateDialog(savedInstanceState);


    // request a window without the title
    dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);

    //  closeDialog = (ImageView) dialog.findViewById(R.id.closeDialog);

    return dialog;

}



public void getAdapter() {

        gridAdapter = new HomeSubGridViewAdapter(getContext(), R.layout.gridview_custom_layout, liststring);
        gridView.setAdapter(gridAdapter);

}


}

这是从片段调用对话框的方法

  fragmentManager = ((FragmentActivity) context).getSupportFragmentManager();
                    SubcategoryFragment postalFragment = SubcategoryFragment.newInstance(Integer.valueOf(item.getId()), item.getName());
                    postalFragment.show(fragmentManager, "SubcategoryFragment");

随意问你是否觉得有任何问题是

于 2016-10-31T12:37:51.783 回答
2

我遇到了同样的问题,即无法从第一个 DialogFragment 的正面和负面点击侦听器中显示另一个 DialogFragment。我的解决方案是立即弹出第一个片段,这允许第二个 DialogFragment 成功附加并显示。

// Call this before adding the second dialog fragment activity.getSupportFragmentManager().popBackStackImmediate();

于 2016-05-23T21:05:58.877 回答
2

您可以从另一个DialogFragment 调用DialogFragment

NewDialogFragment newDialogFragment= new NewDialogFragment();
FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
newDialogFragment.show(transaction, "New_Dialog_Fragment");
于 2019-09-12T07:24:29.490 回答
1

最近,我遇到了这个问题,上面的选项都不适合我。我尝试使用以下方法:

DialogFragment fragment = new MyFragment(); //where MyFragment is my fragment I want to show
fragment.setCancelable(true);
fragment.show(getSupportFragmentManager(), "timePicker");

在您在活动中使用它时才有效(即从活动类调用对话框片段)。

然而,我通过将我的活动实例向下转换为 AppCompat 活动并使用它来调用来解决此问题,getSupportFragment()如下所示:

DialogFragment timeFragment = new TimePicker();
timeFragment.setCancelable(true);
AppCompatActivity activity = (AppCompatActivity) getActivity();
timeFragment.show(activity.getSupportFragmentManager(), "timePicker");

我希望这会有所帮助.. 编码愉快!!

于 2018-02-28T06:18:23.430 回答
0

这是对我有用的代码:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    if (getArguments() == null) {
        throw new InvalidParameterException("The key types dialog needs the protocol id to be in the arguments");
    }
    if (mCallback == null) {
        throw new InvalidParameterException("The key types dialog needs an callback to be set");
    }

    mProtocolId = getArguments().getInt(ApplicationConstants.FragmentsConstants.PROTOCOL_ID);
    final List<KeyTypeEntity> allKeyTypes = BusinessFacade.getInstance(getActivity()).KeyTypeLogic.getAllKeyTypes();

    ArrayAdapter<KeyTypeEntity> keyTypeAdapter = new ArrayAdapter<KeyTypeEntity>(getActivity(), android.R.layout.simple_list_item_1, allKeyTypes);

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    builder.setTitle("").setAdapter(keyTypeAdapter, new OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            final KeyTypeEntity keyTypeEntity = allKeyTypes.get(which);
            AlertDialog.Builder number = new AlertDialog.Builder(getActivity());

            List<String> keyNumbers = new ArrayList<String>();

            for (int i = 0; i < 50; i++) {
                keyNumbers.add("" + (i + 1));
            }
            ArrayAdapter<String> kAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, keyNumbers);

            number.setTitle("").setAdapter(kAdapter, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    addNewKey(keyTypeEntity, which + 1);
                }
            });
            number.show();
        }
    }).setOnCancelListener(new OnCancelListener() {
        @Override
        public void onCancel(DialogInterface dialog) {
            mCallback.onDialogClosed();
        }
    });

    mDialog = builder.create();
    return mDialog;
}

在第一个单击处理程序中,我只是创建一个新对话框并显示它。这将关闭第一个对话框,打开第二个对话框,当用户单击列表中的项目时,将调用第二个单击处理程序。

希望这会有所帮助,我还不算太晚:)

于 2013-05-31T08:53:43.270 回答
0

您可以传递FragmentManagenewInstance()First 方法,DialogFragment然后您可以使用它来显示新的dialogfragment 这是我的代码。

private static FragmentManager fragmentManager;

public static PlayListDialog newInstance(Context context,  FragmentManager fragmentManager1) {
    playListDialog = new PlayListDialog();
    mContext = context;
    fragmentManager = fragmentManager1;
    return playListDialog;
}

@Override
public void createNewPlaylist() {
    NewPlayListDialog newPlayListDialog = NewPlayListDialog.newInstance(mContext);
    newPlayListDialog.showDialog(fragmentManager.beginTransaction(),fragmentManager.findFragmentByTag("newdialog"));
}
于 2017-11-07T03:43:37.970 回答
0

如果您想要 kotlin 版本,请使用以下命令:

val newDialogFragment = NewDialogFragment()
val transaction: FragmentTransaction = 
requireActivity().supportFragmentManager.beginTransaction()
newDialogFragment.show(transaction, "New_Dialog_Fragment")
于 2020-03-29T05:47:06.923 回答
0

用这个:

getActivity().getSupportFragmentManager

代替

getChildFragmentManager().

希望这可以帮助。

于 2019-09-22T12:30:52.157 回答